article · Malaysian Journal of Sustainable Agricultural
Soybean rust, caused by the fungal pathogen Phakopsora pachyrhizi, presents a major threat to crop productivity. Evaluating five soybean varieties under controlled conditions revealed substantial variation in physical traits and disease susceptibility. Plant height spanned from 60.3 centimetres in the TGx1835-10 variety to 87.3 centimetres in TGx1951-3F. Pathological screenings identified distinct responses to the pathogen: varieties TGx1448-2E and TGx1951-4F displayed resistance to rust, whereas TGx1904-6F experienced the highest rate of disease incidence. Molecular profiling using specific simple sequence repeat markers, including CP171/172, SSR1, RB32, and RB34, confirmed significant genetic diversity among the tested lines. Several accessions combined strong rust resistance with high yield potential. These findings correlate molecular diversity with observable resistance characteristics, providing useful genetic data to inform future crop development programmes aimed at building resistance against fungal infections.
Soybean rust is a destructive fungal pathogen capable of inflicting severe crop losses. Identifying varieties that naturally resist infection while maintaining high yields allows plant breeders to target resilient genetic lines. Understanding both physical growth traits and molecular markers enables more efficient selection of resistant crops, supporting food security and agricultural resilience against fungal plant diseases.
This work provides genetic and phenotypic baseline data for soybean breeding programmes and agricultural seed developers. By linking specific simple sequence repeat markers to rust-resistant, high-yielding accessions such as TGx1448-2E and TGx1951-4F, it enables the targeted breeding of improved commercial cultivars. This represents early-stage research conducted under controlled conditions, requiring further field testing and formal breeding trials before commercial deployment.
AI-generated from the published abstract. Always read the original work before citing.
This study examines the phenotypic traits and genetic diversity of soybean genotypes resistant to soybeanrust (Phakopsora pachyrhizi) using simple sequence repeat (SSR) markers. Five soybean varieties, includingboth resistant and susceptible types, were evaluated under controlled conditions. Molecular analysis wasconducted using SSR markers (CP171/172, SSR1, RB32, and RB34) to assess genetic variation. Phenotypicassessments were performed to correlate molecular data with resistance traits, focusing on disease responseand yield potential. The results showed that plant height ranged from 87.3 cm (TGx1951-3F) to 60.3 cm(TGx1835-10). Pathological analysis revealed that some varieties, such as TGx1448-2E and TGx1951-4F,exhibited resistance to rust, while TGx1904-6F had the highest disease incidence. Overall, the findingshighlighted significant genetic diversity among the evaluated genotypes, with several accessionsdemonstrating strong resistance and high yield potential. This research enhances the understanding of thegenetic basis of rust resistance in soybean and offers valuable insights for future breeding strategies toimprove crop resilience against this major pathogen.
This page summarises published work. The authoritative version sits with the publisher.
DOI: 10.26480/mjsa.01.2025.65.70
Is something wrong with this record? Report it or request removal.
Discussion
Have you built on this work, tried to replicate it, or seen it applied in practice? Share what you know. Verified researchers and MARATTO™ domain experts can open a discussion, and any member can reply. Contributions are reviewed before they appear.
No discussion yet. Open the first thread.
New to MARATTO™? Create a free account.
